WO2014142386A1

WO2014142386A1 - Thermostat cartridge

Info

Publication number: WO2014142386A1
Application number: PCT/KR2013/004400
Authority: WO
Inventors: 고영민
Original assignee: 주식회사 이엘엔터프라이즈
Priority date: 2013-03-15
Filing date: 2013-05-20
Publication date: 2014-09-18
Also published as: CN105102867A; CN105102867B; KR101303298B1

Abstract

The purpose of the present invention is to provide a thermostat cartridge which prevents water from flowing into a screw-coupled area between a spindle and a sensor bracket using a simple and efficient structure, thereby efficiently preventing the operation of the spindle from being hindered due to a foreign substance or rust generated in the area.

Description

Thermostat cartridge

The present invention relates to a thermostat cartridge, and more particularly, foreign matter or rust is generated in this area by preventing water from being pushed into the screw coupling area between the spindle and the sensor bracket through a simple and efficient structure. It relates to a thermostat cartridge that can effectively prevent the phenomenon of inhibition.

The thermostat cartridge is an apparatus for maintaining the temperature of the initially set mixed water without change by automatically adjusting the flow rate of hot water and cold water introduced therein or the amount of change thereof, and may be applied to a faucet.

Representatively, wax type thermostat cartridges that operate valves by expanding and shrinking when heated are known to be used the most.

The thermostat cartridge shown in FIG. 1 has a mechanism for controlling temperature by moving a sensor adjacent to wax after one side is filled with wax to sense a temperature change. In other words, if the predetermined temperature is set by moving the spindle 130, the sensor bracket 181, which is screwed to the spindle 130, moves, and the valve 140 is operated to reach a predetermined temperature.

However, at this time, the spindle 130 is screw-coupled with the sensor bracket 181 in a form of partially covering the outside of the sensor bracket 181, water is pushed into the screw coupling region (A).

Look at the cause of the water is pushed into the screw coupling area (A). The spring cap 183 installed in the sensor bracket 181 is formed to secure a space for protecting the sensor when the sensor suddenly expands. When the sensor 170 suddenly expands, the spring cap 183 extends the spring 182. This causes the water, which is in between, to be pushed into the screw engagement area (A) between the sensor bracket 181 and the spindle 130.

When such an operation is repeatedly performed, foreign matter or rust is generated in the screw engagement region A, which causes the rotation of the spindle 130 to become soft and not tight, and the applicant of the present invention is a pre-registered invention. 10-1205371 attempted to solve this problem.

The thermostat cartridge disclosed in the applicant's pre-registered invention described above is shown in FIG. 2. This is disclosed in the applicant's patent registration No. 10-1205371 of the present application, one side of the spindle 130 is coupled in the state entered into the sensor bracket 181, the diaphragm 184 is installed in the sensor bracket 181 Therefore, the water is not pushed into the screw coupling region (C) between the spindle 130 and the sensor bracket 181.

However, in the case of the thermostat cartridge shown in FIG. 2, the following problem is additionally generated. The sensor bracket 181 is moved when the spindle 130 is rotated. When the sensor bracket 181 is operated, the first O-ring 191 is also moved. When the spindle 130 is rotated in the opposite direction, the first O-ring 191 is moved. ) Will move in the opposite direction.

As a result, in the case of the thermostat cartridge as shown in FIG. 2, the distance between the first O-ring 191 and the second O-ring 192 increases and decreases according to the operation of the spindle 130. In other words, the degree of vacuum between the first O-ring 191 and the second O-ring 192 that is formed when assembled to a predetermined position is to be changed according to the operation of the spindle 130. Thus, assuming that the degree of vacuum is 100, for example, when the first O-ring 191 is advanced and the distance from the second O-ring 192 is far, the degree of vacuum will drop to about 80, for example.

As the degree of vacuum between the first O-ring 191 and the second O-ring 192 changes, external water gradually penetrates through the first O-ring 191, and eventually, between the spindle 130 and the sensor bracket 181. Since the foreign matter or rust is generated in the screw coupling region C by being pushed up to the screw region C, this causes the rotation of the spindle 130 to become smooth and tight, and thus complementing the structure in consideration of such a point. Required.

An object of the present invention is to provide a simple and efficient structure that prevents water from flowing into the screw coupling area between the spindle and the sensor bracket, thereby effectively preventing the phenomenon of deterioration of the spindle operation due to foreign matter or rust. It is to provide a stat cartridge.

The object is, the valve body is formed on the outer surface of the hot water inlet and cold water inlet; A spindle guided by a spindle guide and exposed to one side of the valve body; A spindle support having a sensor bracket coupled to one side of the spindle in a threaded manner, the spindle support being provided in the spindle guide to support the spindle; A first o-ring provided to be fixed between the sensor bracket and the spindle guide; A second o-ring disposed to be spaced apart from the first o-ring and interposed between the spindle and the spindle guide; And a relative sliding of the sensor bracket with respect to the positionally fixed first o-ring so as to prevent a change in the degree of vacuum of the region between the first o-ring and the second o-ring during operation of the spindle. It is achieved by a thermostat cartridge characterized in that it comprises a sliding groove to enable movement.

The first O-ring, the O-ring body is formed long along the direction in which the sensor bracket is sliding movement; And a pair of end protrusions protruding from both ends of the O-ring body and having a larger cross-sectional area than the O-ring body.

The plate may further include a diaphragm provided in the sensor bracket adjacent to the screw coupling region to prevent water from being pushed into the screw coupling region between the spindle and the sensor bracket.

The spindle support may include a spring having one end supported by the sensor bracket; And a spring cap fixed in the sensor bracket to support the other end of the spring and having a water discharge hole formed at one side thereof.

According to the present invention, it is possible to effectively prevent the phenomenon that the foreign matter or rust is generated in this area to inhibit the operation of the spindle by preventing water from entering the screw coupling area between the spindle and the sensor bracket through a simple and efficient structure. have.

1 and 2 is a structural diagram of a thermostat cartridge according to the prior art,

3 is an external front view of a thermostat cartridge according to an embodiment of the present invention;

4 is a cross-sectional structural view of FIG. 3;

5 is an enlarged view illustrating main parts of FIG. 4;

6 is an enlarged view of the sensor bracket and the first O-ring,

7 is a front view of the spring cap.

10:

valve body

10a, 10b: recessed groove

11: cold water inlet 12: hot water inlet

13 mixed water outlet 15 strainer

20: spindle guide 30: spindle

40 valve 41 body part

42: opening and closing part 43: valve boss

50: elastic body 60: sensor body

70 sensor 80 spindle support

81: sensor bracket 81a: sliding groove

82: spring 83: spring cap

84: plate 85: water discharge hole

91: first O-ring 91a: O-ring body

91b: end projection 92: second O-ring

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

Figure 3 is an external front view of the thermostat cartridge according to an embodiment of the present invention, Figure 4 is a cross-sectional structural view of Figure 3, Figure 5 is an enlarged view of the main portion of Figure 4, Figure 6 is an enlargement of the sensor bracket and the first O-ring And FIG. 7 is a front view of the spring cap.

As shown in these figures, the thermostat cartridge of this embodiment includes a valve body 10, a spindle guide 20, a valve 40, an elastic body 50, a sensor 70, a spindle support 80, and Unlike the prior art, the first and second O-

rings

91 and 92 are disposed while maintaining each other at predetermined intervals.

The valve body 10 forms one side appearance of the thermostat cartridge. The valve body 10 has a substantially cylindrical shape.

As shown in FIG. 4, a cold water inlet 11 and a hot water inlet 12 are formed at an outer surface of the valve body 10, and a mixed water discharge port 13 through which temperature-controlled mixed water is discharged is formed at an end portion thereof. . The opening of the cold water inlet 11 and the hot water inlet 12 may be controlled by an operation of the valve 40 to be described later.

The cold water inlet 11 and the hot water inlet 12 are formed in the

recessed grooves

10a and 10b recessed relatively wide at the outer surface of the valve body 10, and the

recessed grooves

10a and 10b include a strainer 15 having a network structure. , stainer, see FIG. 3).

The strainer 15 is disposed in the recessed

grooves

10a and 10b in which the cold water inlet 11 and the hot water inlet 12 are located on the outer surface of the valve body 10 to filter foreign substances in the hot water and the cold water. .

The spindle guide 20 forms an exterior of one side of the thermostat cartridge, and is connected to the valve body 10 in such a manner that one end is slightly inserted into the valve body 10. The connection method may be a screw coupling method.

The spindle guide 20 serves to guide the spindle 30 while supporting the spindle 30.

The spindle 30 is provided such that one side thereof is disposed in the spindle guide 20 and the other side is exposed to the outside of the spindle guide 20. Spindle 30 may be coupled to the temperature control handle of the faucet (not shown).

The valve 40 is movably disposed at the cold water inlet 11 and the hot water inlet 12 in the valve body 10 to open and close the cold water inlet 11 and the hot water inlet 12, that is, the cold water inlet 11 and the cold water inlet 11. The degree of opening of the hot water inlet 12 is adjusted.

One end of the elastic body 50 is disposed on the nipple 10c coupled to one side of the valve body 10, and the other end is disposed on the valve 40 to guide the movement of the valve 40. The sensor 70 may be provided to contract or expand according to the sensing temperature of the sensor body 60.

On the other hand, the spindle support 80 is provided inside the spindle guide 20 to support the spindle 30.

The spindle support 80 is fixed to the sensor bracket 81, one end of the spindle 30 is screwed, a spring 82, one end of which is supported by the sensor bracket 81, and the sensor bracket 81 A spring cap 83 supporting the other end of the spring 82 is provided.

A stop ring (S / R, Stop-Ring) is coupled to an end region of the sensor bracket 81, and an E-Ring (E / R) is coupled between the spindle guide 20 and the spindle 30.

As enlarged in FIG. 5, one side of the spindle 30 is partially inserted into the inside of the sensor bracket 81, and after being inserted, is coupled to the inside of the sensor bracket 81 in a left-handed manner so that the screw coupling region ( Form C).

In this structure, the sensor bracket 81 is provided with a diaphragm 84. The diaphragm 84 is provided in the sensor bracket 81 adjacent to the screw engaging region C so that water is prevented from being pushed into the screw engaging region C between the spindle 30 and the sensor bracket 81.

More specifically, in the present embodiment, structurally, one side of the spindle 30 is coupled to enter the inside of the sensor bracket 81, but water entering the sensor bracket 81 enters the spindle 30 and the sensor. The diaphragm 84 is installed in the sensor bracket 81 so that the screw coupling area C between the brackets 81 cannot be entered at all. Therefore, water entering the sensor bracket 81 cannot be originally entered into the screw engaging region C between the spindle 30 and the sensor bracket 81.

On the other hand, when the spring cap 83 is moved, that is, when the spring cap 83 presses the spring 82 by the expansion of the sensor, the spring cap (so that the water entered into the sensor bracket 81 can escape) The water discharge hole 85 is formed in 83 as shown in FIG. Therefore, the water pressurized by the spring cap 83 and entered into the sensor bracket 81 is blocked by the diaphragm 84 and cannot proceed toward the spindle 30, and the water discharge hole formed in the spring cap 83 ( 85).

In addition, when a change occurs in the distance between the first O-ring 91 and the second O-ring 92 during the operation of the sensor bracket 81 by the spindle 30 as described above with reference to FIG. 2, the first O-ring As the degree of vacuum between the 91 and the second O-ring 92 changes, external water gradually pushes in between the sensor bracket 81 and the spindle guide 20, while the screw between the spindle 30 and the sensor bracket 81. It can penetrate up to region (C).

Therefore, in the present embodiment, the first O-ring 91 and the second O-ring 92 are provided to be fixed in position at the corresponding position, and the sensor bracket 81 is slid to move the first O-ring 91 and the second O-ring 92. It is configured so that there is no change in space between them. Therefore, the degree of vacuum between the first O-ring 91 and the second O-ring 92 does not change, so that external water does not penetrate into the first O-ring 91.

Hereinafter, in detail, the first O-ring 91 is provided to be fixed in position between the sensor bracket 81 and the spindle guide 20. The first O-ring 91 is positioned between the sensor bracket 81 and the spindle guide 20 so that the sensor bracket 81 can be slidably moved relative to the position-fixed first O-ring 91. On the outer surface of the sensor bracket 81 on which the 91 is disposed, a sliding groove 81a is formed to allow relative sliding movement of the sensor bracket 81 with respect to the position-fixed first O-ring 91. The sliding groove 81a is formed longer than the length of the first o-ring 81.

The first O-ring 81 disposed in the sliding groove 81a and fixed in position may protrude from both ends of the O-ring body 91a formed along the direction in which the sensor bracket 81 is slid and the O-ring body 91a. It includes a pair of end projections (91b) having a larger cross-sectional area than the return ring body (91a).

The pair of end projections 91b have an O-ring body 91a at both ends of the O-ring body 91a so that the first O-ring 81 is tightly positioned and fixed between the sensor bracket 81 and the spindle guide 20. Rather, the cross section is large.

The second O-ring 92 spaced apart from the first O-ring 91 is interposed between the spindle 30 and the spindle guide 20.

As in this embodiment, the position of the first O-ring 91 is fixed to maintain a constant distance from the second O-ring 92, and only the sensor bracket 81 is slidably moved in accordance with the rotation of the spindle 30. There is no vacuum compression or expansion between the o-ring 91 and the second o-ring 92. Therefore, water can be prevented from penetrating through the first O-ring 91 as in the past, and as a result, water penetrating to the screw area C between the spindle 30 and the sensor bracket 81 can be solved. Will be.

Looking briefly at the action on the thermostat cartridge of this embodiment having such a configuration as follows.

When the temperature control handle (not shown), which may be coupled to the spindle 30 region, is rotated to a predetermined temperature, the cold water inlet 11 and the hot water inlet 12 are primarily determined through the movement of the valve 40.

Thereafter, while the length of the sensor 70 is changed by the incoming hot water and cold water, the position of the valve 40 is interlocked in this way, and finally the inflow of hot water and cold water is determined so that the mixed water is adjusted to the required temperature. It can be discharged.

On the other hand, in the present embodiment, as described above, by fixing the position of the first O-ring 91 and only the sensor bracket 81 to move in accordance with the rotation of the spindle 30, the distance from the second O-ring 92 Since the water is kept constant, water can be prevented from penetrating through the first O-ring 91 as in the past, and thus water is pushed to the screw region C between the spindle 30 and the sensor bracket 81. It can solve the lifting problem.

According to the thermostat cartridge of this embodiment having such a structure and operation, the water is not pushed into the screw engaging region C between the spindle 30 and the sensor bracket 81 through a simple and efficient structure. Foreign matter or rust is generated it is possible to effectively prevent the phenomenon that inhibits the operation of the spindle (30).

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

Claims

A valve body having a hot water inlet and a cold water inlet formed on an outer surface thereof;

A spindle guided by a spindle guide and exposed to one side of the valve body;

A spindle support having a sensor bracket coupled to one side of the spindle in a threaded manner, the spindle support being provided inside the spindle guide to support the spindle;

A first o-ring provided to be fixed between the sensor bracket and the spindle guide;

A second o-ring disposed to be spaced apart from the first o-ring and interposed between the spindle and the spindle guide; And

Relative sliding movement of the sensor bracket relative to the first O-ring, which is formed on the outer surface of the sensor bracket so that a change in the degree of vacuum of the region between the first O-ring and the second O-ring does not occur during operation of the spindle. Thermostat cartridge comprising a sliding groove to enable.
The method of claim 1,

The first O-ring is,

O-ring body is formed long along the direction in which the sensor bracket is sliding movement; And

A thermostat cartridge comprising a pair of end protrusions protruding from both ends of the O-ring body and having a larger cross-sectional area than the O-ring body.
The method of claim 1,

And a diaphragm provided in the sensor bracket adjacent to the screw coupling region so that water inside the sensor bracket is prevented from being pushed into the screw coupling region between the spindle and the sensor bracket.
The method of claim 1,

The spindle support,

A spring having one end supported by the sensor bracket; And

It is fixed in the sensor bracket to support the other end of the spring, the thermostat cartridge, characterized in that it further comprises a spring cap formed with a water discharge hole on one side.